CPT code 21320 covers closed reduction of nasal bone fractures with application of an external stabilization device. This is a commonly performed acute facial trauma procedure that restores nasal alignment and function while providing temporary immobilization for healing. Nationally, timely management of nasal fractures affects patient outcomes for breathing, cosmesis, and risk of long-term deformity, and the code is relevant across emergency, urgent care, and outpatient surgical settings.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical indication for the code, typical settings where the service is delivered, and the reimbursement and coding context relevant to commercial and public payers. The publication outlines benchmarks for utilization and payment (where available), common modifier use, and coding considerations that influence claim processing.

The report also provides clinical context about when closed reduction with splinting is indicated versus alternatives, expected procedural elements, and typical post-procedure stabilization. Data not available in the input are noted where applicable. This resource is intended for coding professionals, practice managers, and clinicians involved in facial trauma care and medical billing.